The HP Pavilion Slimline s3500f ($580 direct) is HP's customizable version of the Slimline PC configuration we've seen before in the Slimline s3330f. It uses the same case, but the s3500f is a little more than half the price of its predecessor. Obviously the new system has fewer bells and whistles, but then again, you don't always need all the optional extras to get a useful PC, especially for the midrange user or student.